Unit 3 第2课时 课本讲解及句型拓展-2022-2023学年八年级英语下册同步精品课堂（牛津上海版）

Electricity 牛津上海版 英语 八年级 第二学期 Unit 3 Episode 2 A：高台跳水 Cartoon talk I’m a boy. My energy comes from food. I’m a robot. My energy comes from electricity. What’s in Hi’s hands? What are Hi and Lo talking about? Where does Lo’s energy come from? What’s the weather like in the cartoon? What will this unit probably be about? A chicken leg and an ice cream. Where their energy comes from. Electricity. It’s rainy. Electricity. What do you know about …? A1 Do you know these things? What can they do? 11-1 1 2 3 4 5 6 7 8 9 10 A2 What common points are there among them? They all use electricity. They change electricity into other forms of energy. 11 4 A3 What forms of energy can they change electricity into? 11-2 light energy heat energy moving energy sound energy 1 2 3 4 5 6 7 8 9 10 11 5 1 2 3 4 5 6 7 8 11-3 B We can change electricity into different kinds of energy. Match the kinds of energy in the box with the things in the pictures. Some things may have more than one kind of energy. The first one has been done for you. 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 11-4 heat energy moving energy light energy sound energy ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ sound energy sound energy heat energy light & sound energy light energy moving & sound energy moving energy heat energy 1 2 3 4 5 6 7 8 9 10 11 B You will watch three short clips of video. At the end of each clip, you will see a question. Watch each clip carefully and try to answer the questions. Try to remember every item appeared in the video. 11-5 1 2 3 4 5 6 7 8 9 10 11 8 11-6 1 2 3 4 5 6 7 8 9 10 11 9 11-7  1 2 3 4 5 6 7 8 9 10 11 10 11-8 1 2 3 4 5 6 7 8 9 10 11 11    11-9 1 2 3 4 5 6 7 8 9 10 11 12 11-10 1 2 3 4 5 6 7 8 9 10 11 13     11-11 1 2 3 4 5 6 7 8 9 10 11 14 Before you read 4-1 1 2 3 4 A Answer the following questions. What is energy? How do you feel if you do not have energy? If you do not have a lot of energy,